Hydraulic motor



{No Model.)

-J. W. PACK.

HYDRAULIC MOTOR. No. 469,589. Patented Feb. 23, 1892.

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UNITED STATES PATENT OFFICE.

JOHN \Y. PACK, OF SAN FRANCISCO, CALIFORNIA.

HYDRAULIC MOTOR.

SPECIFICATION forming part of Letters Patent No. 469,589, dated February 28, 1892.

Application filed May 25, 1891. Serial No. 394,048. (No model.)

To a, whom it may concern.-

Be it'known that 1, JOHN /V. PACK, a citizen of the United States, residing in the city and county of San Francisco, State of California, have invented an Improvement in ater-Wheels; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to a novel construction of a Water-wheel, which is designed for the propulsion of small machinery.

It consists of a case of peculiar shape having a supply-pipe extending centrally and axially through one end, an enlarged head having a step in the center of the end Within the case, tubes or passages upon the sides of said head through which water is delivered, and in combination with this of a peculiarlyshaped wheel consisting of a disk with curved buckets projecting from one face of it and surrounding the perforated head of the supply-pipe, the shaft of said wheel extending through the opposite end of the case without packing and having its opposite end turning on an adjustable hearing.

The invention also consists in certain details of construction which will be more fully explained by reference to the accompanying drawings, in which- Figure 1 is a longitudinal vertical section of the case and wheel. Fig. 2 is a transverse section taken through w m of Fig. l.

A is the case, which is essentially cylindrical in form and made convex, as shown at A, so as to provide an enlarged circumferential channel within that end of the case. This channel connects and is directly in line with the outlet-passage B. Through the end of the case which is adjacent to this convex portion the supply-pipe 0 leads. This pipe is exactly in the center of the case and has at the end within the case an enlarged head D. In the center of this head is a step, with in which the inner end of the wheel-shaft E fits and turns. Around the periphery of this head are made passages or openings F, through which the water delivered by the supply-pipe is discharged into the buckets of the wheel. The wheel is made, as shown in the present case, in the form of a disk G, having the face which is presented toward the interior of the case made convex and the concave face presented toward the head upon that end of the case. The shaft E passes through the center of this disk, the inner end being stepped, as before described, in the head D, and the outer end fitting the point of an adj usting-screw H, which supports that end.

This screw passes through a bracket I, the bracket being secured upon the end of the case opposite to the one containing the inletpipe. The head of the case fits loosely around the-shaft,having no contact with it, and no packing is necessary at the point where the shaft passes through the head, the peculiar shape and concavity of the side of the wheel which is adjacent to the head preventing any escape of water at this point. From the conveX surface of the disk the curved blades K project, as shown. The inner ends of these blades surround the perforated head D and revolve just out of contact with it, so that Water is delivered through the apertures in the head directly into the concavity of these buckets or blades. The outer ends of the blades are a sufficient distance from the inner cylindrical portion of the case Within which they revolve to allow the escape of water at this point; but the greater portion of the water escapes out through the open bottom of the blades or buckets and is delivered directly into the convex portion of the case by reason of the centrifugal and outward motion of the water, and by reason of this convexity at this point the water is delivered and discharges freely through the outlet-opening, so that the wheel runs entirely clear and is not retarded by the filling up of the case with water. The back of the disk of the wheel runs as closely to the head of the case at t-hatend asi's possible Without absolute contact. By reason of this the centrifugal motion which is given to any water which may reach this point, and the fact that the greater portion of the water is discharged downward and outward from the buckets of the wheel, I have found it unnecessary to pack the shaft or in any way provide against the escape of water at this point, as no water will ever escape around the shaft. The wheel-shaft is adjusted between the step and the point of the screw at the opposite end, so as to runas freely as is neces sary and at the same time without side shake. A pulley L is fixed upon the wheel-shaft, and

from this pulley a belt may be carried to any machinery which it is desired to drive-from the wheel.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a water-wheel, the case having the upper end made cylindrical and the lower end convex, a discharge-passage in connection with the convex portion of the case,a supplypipe extending axially into this end of the case having an enlarged cylindrical headat its inner end between the sides of the cylindrical portion of the case, a wheel consisting of the concave-convex disk having buckets projecting from its convex face and surrounding the head of the supply-pipe, a stepmade JOHN W. PACK.

Witnesses:

S. H. NOURSE, J. A BAYLEss. 

